Regal 53 SC Owner's Manual page 59

FUEL SENDER
E
the fuel tank and sends a signal to various displays in-
cluding the fuel gauge located at the helm (dash).
Always use the one-third rule with diesel fuel. One-third
for outbound cruising, one-third for inbound cruis-
ing, and the remaining one-third fuel supply for reserve.
FUEL TANK FILL/VENT
Placed at the
top center of
the fuel tank
is an elec-
tronic fuel
sender. This
device reads
the amount
DIESEL VENT
of fuel re-
FITTING
maining in
close the fi tting tightly. Failure to secure the fuel fi tting
tightly may allow water to enter the fuel tank and eventually
the engine fuel system. Periodically lubricate the fuel fi tting
O-ring by coating with clean diesel fuel. This will help keep
the O-ring pliable and retain its sealing properties.
The fuel vent serves as a pressure relief for the diesel tank
and is a safety overfl ow device. The vent is found below
the fuel fi ll fi tting at the starboard hull side. It has a screen
inside which needs to be periodically cleaned. Insects can
cause the vent to clog resulting in increased pressure in
the fuel system especially noticeable when fi lling the fuel
tank. In extreme clogging cases the fuel will emerge from
the fi ll because the vent is not able to relieve the air in the
fuel tank that is being replaced with diesel fuel.
7
DIESEL FILL
FITTING
WARNING
!
PREVENT INJURY, DEATH, OR
PROPERTY DAMAGE!
INSPECT THE FUEL SYSTEM
PERIODICALLY FOR LEAKS,
LOOSE CLAMPS OR FASTENERS.
Systems
The fuel tank fill
fitting is located
on the starboard
deck above the rub
rail. It is marked
diesel. Never pump
gasoline in a fuel
tank designated for
diesel fuel. After
f u e l i n g u s e t h e
fitting key tool to